Used Okamoto Surface Grinding Machine for sale (30)

Condition: excellent (used), Year of construction: 2019, functionality: fully functional, OKAMOTO ACC-16*24SA1 Precision Surface Grinding Machine Okamoto Precision Surface Grinding Machine ----- Model ACC-16•24SA1 Automatic Wheelhead Approach, Retraction to Start Position, Automatic Dress Cycle with Wheel Wear Compensation, Shift Plunge Cycle--- ----- Grinding Capacity 16”x 24” Standard Accessories • Automatic Overhead Wheel Dresser • Touch Screen Controller with 10” Display Knsdpfxozmhknj Ahiec With Compensation, including Diamond Tool • Vertical & Crossfeed Pulse Generator • Rapid Wheel head Retraction • Teach-Input Positioning • Load Meter for Grinding Wheel Motor • 5 HP Wheel Spindle Motor • Shift-Plunge Rough Grinding Cycle • Stainless Steel Wheel Guard • Selectable Rough/Fine Infeed Grinding Method • Leveling Bolts with Plates • Table Park for Safety • Necessary Tools & Tool Box • Stainless Steel Splash Guard • Installation and Training • Instruction Manual

Condition: like new (used), Year of construction: 2024, operating hours: 200 h, functionality: fully functional, grinding length: 600 mm, grinding width: 400 mm, workpiece weight (max.): 1,000 kg, grinding height: 430 mm, grinding wheel diameter: 405 mm, table load: 1,000 kg, grinding wheel width: 50 mm, spindle speed (max.): 2,500 rpm, spindle speed (min.): 500 rpm, grinding spindle motor power: 7,500 W, warranty duration: 12 months, input voltage: 400 V, Equipment: documentation/manual, rotational speed infinitely variable, First commissioning: 2024 Operating hours "grinding wheel in use": approx. 100 hours The machine will be completely inspected by the manufacturer OKAMOTO and delivered with an acceptance protocol for the geometry. Manufacturer's warranty: 12 months for delivery within the European Union and commissioning by T-Rade Service GmbH (commissioning optional in Germany: EUR 7,900, EU EUR 9,800) Design: Column feed Control: Fanuc Screen: Touchscreen Workshop programming: for flat, groove, and step grinding (optional) Conventional operation of the machine possible (manual operation) Automatic multiple plunge cuts Teach-in functions: vertical, dressing, and reversing points Folding dresser with 3 diamonds next to the magnetic clamping plate Automatic compensation of dressing amount Longitudinal guides: double prism, hand-scraped with thermally symmetrical behavior, PTFE coated Maximum table load: 1,000 kg Hydraulic table drive X-axis Electric servo table drive Z-axis Electric servo grinding spindle drive Y-axis Travel in longitudinal direction: 950 mm Travel in transverse direction: 440 mm Travel table-new wheel (Ø 355 mm): 522 mm Grinding wheel standard: Ø355x38 mm Grinding wheel Ø max.: 405 mm Grinding wheel width max.: 50 mm Grinding wheel bore: Ø 127 mm Grinding spindle drive power: 7.5 kW Grinding spindle speed, infinitely variable: 500-2500 rpm Leveling screws and support plates Operating/programming/maintenance manual, operating tool LED lamp Machine paint: Dark gray/silver structure Machine dimensions approx. L x W x H: 3,560 x 2,900 x 2,210 mm Weight approx.: 4,950 kg Connection value: 15 kVA Accessories: Folding dresser with automatic compensation Coolant flushing gun Flanges 1 piece Grinding wheels 1 piece Commissioning and training by OKAMOTO is mandatory for the warranty. Optionally available: Electro-permanent magnet, transverse pole: 800x400 mm, p=13 mm, extra charge EUR 9,000.00 Band filter tank: 180 liters, extra charge: EUR 9,000.00 All information is non-binding, subject to prior sale. The machines remain our property until full payment. Our general terms and conditions apply. Delivery: ex works Delivery date: upon agreement (approx. 8 weeks) Prices: plus VAT Payment terms: strictly net, 10% with order, 90% before shipment The price for the machine as stated is valid only in Germany. Other EU countries at an extra charge upon request. No export of the machine. Kodpfoz Hc Sdex Ahijnc

Condition: good (used), Year of construction: 2001, functionality: fully functional, grinding length: 450 mm, grinding width: 150 mm, total height: 2,129 mm, total length: 1,940 mm, total width: 1,317 mm, workpiece weight (max.): 120 kg, grinding height: 510 mm, grinding wheel diameter: 205 mm, distance table to spindle center: 510 mm, table length: 510 mm, table load: 120 kg, type of input current: three-phase, table width: 150 mm, overall weight: 1,250 kg, grinding spindle motor power: 1,500 W, travel distance X-axis: 530 mm, travel distance Y-axis: 175 mm, rotational speed (max.): 2,400 rpm, grinding spindle speed: 2,400 rpm, input voltage: 400 V, Equipment: rotational speed infinitely variable, 2001 Okamoto ACC-450DXA Surface Grinder | 450 x 150mm Knjdpfx Ahjz Rqk Roisc Used 2001 Okamoto ACC-450DXA Hydraulic Surface Grinding Machine for Sale – 450 x 150mm Grinding Capacity – Automatic Grinding Cycle – Spare Grinding Wheels Included Manufacturer: Okamoto Model: ACC-450DXA Machine Type: Hydraulic Surface Grinder Year: 2001 Condition: Working Well Includes: Coolant Equipment Magnetic Chuck Cross Feed Digital Display Vertical Digital Display Wheel Guard Spare Grinding Wheels Machine Description Used 2001 Okamoto ACC-450DXA precision surface grinder available for sale. The Okamoto ACC-450DXA is a compact, high-quality hydraulic surface grinding machine designed for accurate flat and form grinding applications in precision engineering, toolrooms, mould and die shops and general manufacturing environments. The machine provides an approximate 450 x 150mm grindable surface, with 530mm longitudinal table travel and 175mm cross travel, making it particularly suitable for precision grinding of small and medium-sized components. The DXA version features an automatic grinding cycle, combining hydraulic table movement with controlled crossfeed and vertical grinding functions to provide repeatable production grinding while remaining straightforward to set and operate. This machine is supplied with a selection of spare grinding wheels. Main Specifications Manufacturer: Okamoto Model: ACC-450DXA Year: 2001 Machine Type: Precision Hydraulic Surface Grinder / Surface Grinding Machine Grinding Capacity Maximum Grindable Surface: Approx. 450 x 150mm Table Working Area: Approx. 510 x 150mm Longitudinal Travel: Approx. 530mm Cross Travel: Approx. 175mm Distance from Grinding Wheel to Table: Approx. 60–510mm Maximum Table Load: Approx. 120kg The generous longitudinal movement relative to the 450mm grinding length allows the wheel to clear the component during the grinding cycle. Grinding Wheel & Spindle Grinding Wheel Diameter: Approx. 205mm Grinding Wheel Peripheral Speed: Approx. 2,400m/min Grinding Spindle Motor: Approx. 1.5kW The spindle arrangement is designed for precision surface grinding where good finish, flatness and dimensional accuracy are required. Additional Drive Motors Hydraulic Pump Motor: Approx. 0.75kW Crossfeed Motor: Approx. 0.75kW Grinding Head Up/Down Motor: Approx. 0.4kW DXA Automatic Grinding Cycle The ACC-450DXA version is designed to provide an automatic grinding cycle, making it suitable for repetitive precision surface grinding operations. The DX-series design incorporates features aimed at both rough and finish grinding, including: Automatic grinding-cycle capability Hydraulic longitudinal table movement Powered crossfeed Powered vertical grinding-head movement Coarse and fine vertical feed Precision feed adjustment Robust saddle-type construction Hand-finished precision guideways Automatic lubrication system These features make the ACC-450DXA suitable for both one-off toolroom work and repetitive component grinding. Approximate Machine Dimensions Overall Length: Approx. 1,940mm Overall Width: Approx. 1,317mm Overall Height: Approx. 2,129mm Machine Weight: Approx. 1,250kg

Condition: used, Year of construction: 2006, machine/vehicle number: 65126, Grinding area: 630x350 mm, grinding wheel diameter: 350 mm, magnetic clamping plate, size: 600x300 mm, with coolant system, fleece filter system and automatic depth feed. Kodpoz Nhqxjfx Ahijnc

Condition: used, functionality: unexamined, machine/vehicle number: 68191, grinding length: 800 mm, type of input current: three-phase, input voltage: 400 V, Okamoto ACC-84DX surface grinding machine. Serial no. 68191, connection 3 x 400 V, 50 Hz, 8.5 kVA. Grinding length 800 mm. Knodjz A Ulhopfx Ahiec Magnetic clamping table, coolant supply with shut-off valve, splash guard, control panel with two digital displays, handwheel and fine feed adjustment. Location: Homburg (Saar), Germany. Inspection by appointment only. Price on request, net plus VAT, ex works; dismantling and loading by arrangement. All information without guarantee.

Condition: not inspected (used), For sale is an Okamoto surface grinder type ACC-12.24DX The machine can not be tested by us, because it requires a 60 Hz connection. Kjdpfx Ahonzhwwjijnc Visually the machine is in good condition new grinding wheel included in the offer. Technical data: Volt: 230/460 Freq.: 60 Hz phase: 3 Power: 7.5 KvA Control voltage AC: 100 V Control voltage DC: 12-24 V Clamping surface: 30*67 cm grinding wheel diameter: 30 cm Pitch circle diameter: 7.5 cm On request, for an additional charge, the machine can be loaded on truck and the transport can be organized Europe-wide. Prices plus value added tax Viewing by appointment possible. Contact us, our team is happy to help you. Trade-in or exchange possible! Machines purchase / sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES ETC. Do you need a high-quality but inexpensive metalworking machine for your production? Or do you want to sell yours? For more information or to contact us, please visit our website

Condition: used, Year of construction: 1991, working area 225 mm table-size L:550 mm table-size B:200 mm sanding disc diameter 200mm mm Kedpfxjud Alge Ahienc magnetic plate size 500 mm weight of the machine ca. 1,8 t dimensions of the machine ca. 2000x1600x2100 m

Condition: as good as new (ex-display), Year of construction: 2020, operating hours: 200 h, functionality: fully functional, workpiece weight (max.): 150 kg, grinding length: 500 mm, grinding wheel diameter: 455 mm, grinding diameter: 300 mm, workpiece weight between centers: 150,000 g, type of input current: three-phase, workpiece diameter between centers: 500 mm, grinding wheel width: 75 mm, spindle speed (max.): 500 rpm, spindle speed (min.): 10 rpm, grinding spindle motor power: 7,500 W, overall weight: 4,600 kg, Demonstration CNC cylindrical grinding machine with automation setup Knodpfxszn U S Ij Ahisc Brand OKAMOTO Model OGM-350 P NCIII Year of manufacture 2020 Control: Fanuc Oi Model D Operating hours: approx. 200 hours Technical specifications Maximum swing diameter: 320 mm Maximum distance between centers: 500 mm Maximum workpiece diameter to be ground: 300 mm Maximum workpiece weight between centers: 150 kg Maximum workpiece weight: flange + chuck + workpiece: 40 kg Grinding wheel: Diameter x width x bore: 455 x 75 x 127 mm Wheel speed: Continuously variable Circumferential speed: 45 m/sec Grinding headstock (x-axis) Maximum travel: 300 Swivel angle: Non-swivel Workpiece table (z-axis) Travel: 870 mm Swivel angle: 0 – 10° Workhead Fixed/Live Center Design MK 4 Taper Chuck Spindle Bore Diameter 20 mm Spindle Speed ​​10 – 500 rpm Swivel Angle: Non-Swivel Tailstock Tailstock Type: Manual Fine Taper Adjustment Quill Travel 30 mm MK 4 Taper Chuck Drive Power Grinding Wheel Drive 5.5 kW Total Power 20 kVA Dimensions/Weight Length x Width x Height approx. 3400 x 2330 x 1950 mm Machine Weight approx. 4,600 kg Standard Equipment: 2 Carbide Centers Full FANUC Keyboard with Radius Compensation for Creating ISO Programs Workshop Programming: Graphic Software for Grinding and Dressing Cycles with Teach-in Function GAP Eliminator Shoulder Positioning Constant Table coolant flush 3 color LED lamp Documentation Leveling screws and support plates Operating tool set Accessories Automation preparation Automatic door Automation interface Grinding wheel guard fully open when door is open Miscellaneous Signal lamp Tailstock with electric quill retraction 1 flange 1 grinding wheel Options upon request: Paper belt filter on request Clamping devices on request Commissioning and training on request (Commissioning by Okamoto is required for warranty purposes) Transport on request

Condition: used, Year of construction: 2001, functionality: fully functional, OKAMOTO ACC 64 DX Surface Grinding Machine Kodpfxozv Ef Us Ahienc Year: 2001 TBC Servo Automatic Downfeed 600 x 400.0mm WALKER HAGOU MAGNET Electromagnetic chuck Paper coolant filtration system

Condition: good (used), Year of construction: 2002, functionality: limited functionality, Description Kodevk R Stopfx Ahijnc Working range: X-axis (longitudinal): 800 mm Y-axis (transverse): 400 mm Z-axis (vertical): 440 mm Table clamping surface: 800 x 400 mm Table load max: 700 kg Sanding head: Grinding wheel diameter: 400 mm Drive power: 4 KW Dimensions / weight / transport dimensions: PACKING LIST: 4500x2300x2800 mm Machine 850x650x1400 mm Control panel 1600x650x900 mm Extraction unit 750x580x1000 mm Cooler 1800x900x750 mm Belt filter with pump 1050x650x2100 mm Switch cabinet 1200x800x400mm Grinding wheels+electrical diagram+operating instructions+stand Weight: 3.700 kg ACCESSORIES AND equipment: ' Magnetic clamping plate SAV 600 x 400 mm ' Coolant system with belt filter system ' Diaform unit type 102/RA210 ' Airtech MFE20-SP extraction system ' Hand wheel ' Various grinding wheels / flanges

Condition: used, Year of construction: 2020, Coordinate grinding machine Hauser 3 SM, year of manufacture 1996 Knsdpfxozc Eihs Ahiec Surface grinding machine Okamoto, year of manufacture 1996 Cylindrical grinding machine Weiss W11, year of manufacture 2009

Year of construction: 2018, condition: ready for operation (used), - USED - SURFACE GRINDING MACHINE MAX GRINDING LENGTH: 600 mm MAX GRINDING WIDTH: 400 mm LONGITUDINAL TRAVEL: 750 mm TRANSVERSAL TRAVEL: 340 mm 340 mm TABLE SIZE: 650 x 400 mm MAX ADMITTED LOAD: 420 Kg MAGNETIC CHUCK: 600 x 400 mm Knsdjyry R Sspfx Ahijc GRINDING WHEEL SIZE: 355 x 38 x 127 mm GRINDING WHEEL SPEED: 1500 rpm MOTOR POWER: 3,7 kW WEIGHT: 2900 Kg OVERALL DIMENSIONS: 2725 x 2205 x 1761 mm ACCESSORIES: PAPER FILTER

Condition: good (used), machine/vehicle number: 64 DX, Okamoto 64 DX surface grinder. Ksdpfx Ajzkwudehienc

Condition: good (used), Year of construction: 1989, functionality: fully functional, feed length X-axis: 650 mm, feed length Y-axis: 400 mm, feed length Z-axis: 230 mm, spindle speed (max.): 3,000 rpm, For sale is a surface grinding machine of the brand Okamoto, type PSG 52 UDX The machine is well-maintained and ready for immediate use Technical data: Year of manufacture: 1989 Grinding area: X-axis: 650 mm (manual) Z-axis: 230 mm Y-axis: 47 mm – 400 mm Max. height movement lower edge of new wheel (with ¯ 205 mm) min./max. - table) Grinding wheel ¯: Maximum ¯ 225 mm. Speed range: 3000 rpm (stepless speed control) Table feed: 0.3 – 25 m/min (hydraulic in X-axis) Table area ground: 550 x 200 mm Magnetic chuck: 500 x 200 mm (standard size) Ksdpfx Ahjwnnbrsisnc (Load incl. magnet max. 200 kg) Transport and loading can be arranged on request, for an additional charge, Europe-wide. Prices plus VAT Viewing possible by appointment. Contact us, our team looks forward to assisting you. Trade-in or exchange possible! Machinery purchase / sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MUCH MORE. Do you need a high-quality but affordable metalworking machine for your production? Or do you want to sell yours? For more information or ways to contact us, visit our website

Condition: used, Year of construction: 1995, grinding length 600 mm grinding width max. 320 mm workpiece height max. 500 mm Knodjzkv Ayjpfx Ahisc magnetic clamping plate 300 x 605 mm horiz. table movement: longitudinal man. max. 750 mm horizontal table movement: cross max 340 mm sanding disc diameter 355 mm table load max. 420 kg grinding wheel width 50 mm bore 127 mm spindle turning speed range 1500 U/min rapid traverse vertical 400 mm/min weight of the machine ca. 2500 kg dimensions of the machine ca. ca. 2800x2000x1800 mm

Condition: reconditioned (used), Year of construction: 2006, functionality: fully functional, feed length X-axis: 750 mm, feed length Y-axis: 340 mm, feed length Z-axis: 525 mm, workpiece weight (max.): 420 kg, grinding height: 455 mm, grinding wheel diameter: 350 mm, distance table to spindle center: 455 mm, table length: 600 mm, table load: 420 kg, type of input current: AC, table width: 300 mm, grinding wheel width: 40 mm, spindle speed (max.): 1,500 rpm, overall weight: 2,500 kg, Precision grinding machine for flat surfaces "OKAMOTO mod. ACC-63DX BV" with viewer on the grinding wheel descent axis and on the table transversal axis. Kedpfsu T N Igex Ahijnc

Condition: ready for operation (used), functionality: fully functional, grinding wheel diameter: 355 mm, spindle speed (max.): 1,500 rpm, travel distance X-axis: 750 mm, travel distance Z-axis: 340 mm, controller manufacturer: Fanuc, TECHNICAL DETAILS Travel range, X-axis: 750 mm Travel range, Z-axis: 340 mm Table width: 600 mm Table depth: 300 mm Magnet width: 600 mm Magnet depth: 300 mm Max. grinding wheel diameter: 355 mm Max. spindle speed: 1,500 rpm MACHINE DETAILS Drive system: CNC Control system: Fanuc DIMENSIONS & WEIGHT Knsdpszuw Dmsfx Ahisc Dimensions (L x W x H): 3,500 x 2,300 x 2,400 mm Net weight: 2,500 kg Shipping packages: 3 units EQUIPMENT CE marking

Condition: good (used), Year of construction: 1988, voltage 380 V connected load 7,5 kVA Kedpfx Asw Dvkaohionc dimensions 2725 x 1930 x 1773 mm weight of the machine ca. 2500 kg --> Technical data Main data: --> Table surface: 605 x 300 mm --> Table longitudinal movement max. (manual): 750 mm --> Table transverse movement: 340 mm --> Grinding height between table/new grinding wheel min/max: 22.5 / 322.5 mm --> Standard size of magnetic clamping plate: 600 x 300 mm --> Workpiece weight incl. magnet: 420 kg --> X-axis / longitudinal movement: --> T-slots (number x width): 3 x 17 mm --> Table feed, hydraulic: 0.3 - 25 m/min --> Travel per handwheel revolution: 47 mm --> Y-axis / height movement: --> Automatic vertical feed - coarse in 12 steps: 0.001 - 0.03 mm --> Automatic vertical feed - fine in 8 steps: 0.001 - 0.01 mm --> Distance per handwheel revolution (x1/x10): 0.1 / 1.0 mm --> Graduation on handwheel (x1/x10): 0.001 / 0.1 mm --> Trigger strokes: 0 - 5 --> Rapid traverse: 400 mm/min --> Z-axis / transverse movement: --> Automatic transverse feed intermittent: 0.5 - 20 mm --> Automatic transverse feed / rapid traverse continuous: 0.1 - 1.0 m/min --> Distance per handwheel revolution: 5.0 mm --> Scale mark on handwheel: 0.02 mm --> Standard grinding wheel: --> Ø x width: Ø 355x38 (50) mm --> Bore: Ø 127 mm --> Speed: 1500 rpm --> Accessories Various grinding wheels --> Documentation

Condition: used, total height: 2,400 mm, total length: 3,500 mm, total width: 2,300 mm, Colour: Cream Empty weight: 2.500 kg - CE marking present: Yes Knodpfjzubdwjx Ahiec - Drive system: CNC - Control system brand: Fanuc - X-axis travel [mm]: 750 - Z-axis travel [mm]: 340 - Table width [mm]: 600 - Table depth [mm]: 300 - Magnet width [mm]: 600 - Magnet depth [mm]: 300 - Max. grinding wheel diameter [mm]: 355 - Max. spindle speed [rpm]: 1500 - Options: Digital readout - Transport dimensions: 3500mm x 2300mm x 2400mm (l x w x h) - Transport weight [kg]: 2500kg - Transport packages [pcs.]: 3 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Condition: good (used), Year of construction: 2014, functionality: fully functional, Table surface: 850 x 400 mm Magnetic table: 800 x 400 x 105 mm Max. table travel (X x Y): 950 x 440 mm Max. workpiece weight: 700 kg (230 kg on the magnetic table) T-slots on the table: 3 pcs x 17 mm Distance between table and spindle center: 47,5 – 547,5 mm Grinding wheel dimensions: D355 x 38 x d127 mm Spindle speed: 1500 / 1800 rpm (50Hz / 60Hz) Spindle drive power: 3.7 kW / 4.0 kW Knsdpfx Ahey T Nuweiec Longitudinal travel: 3 – 25 m/min (hydraulic and stepless) Cross travel: 1 – 1000 mm/min Vertical feed rate: 1 – 1000 mm/min Minimum increment / feed amount: 0,0001 mm – 0,0002 mm Machine weight: 4000 kg Dimensions (L x W x H): 3310 x 2228 x 2710 mm Accessories / Equipment - Semi-automatic operation - Magnetic table 800 x 400 mm - Coolant system with magnetic separator - Paper band filter - Machine feet - Digital display system for the infeed / increment - Built-in wheel dresser in the spindle head The machine is being sold due to company liquidation. It is in good condition and still under power in Hungary.

Condition: used, Year of construction: 1977, Surface grinder, manufactured by Okamoto, type PSG-63 UA, year of manufacture 1977. Magnetic chuck: 600 mm x 300 mm. Grinding dimensions: Length 630 mm, width 310 mm, height 350 mm. Knodpfxoiz Tmks Ahiec Ready for use.

Year of construction: 2012, condition: used, functionality: fully functional, OKAMOTO - ACC 64CA- Knsdpfx Ahjzxri Ssijc 10 X: 800 mm, Y: 440 mm, Z: 522 mm

Condition: excellent (used), Grinding length 600 mm Grinding width 320 mm Knjdpfjw Hy Twjx Ahiec Max. workpiece height 500 mm Longitudinal table travel 750 mm Cross table travel 340 mm Grinding wheel diameter 350 mm Grinding wheel width 40 mm Spindle speed 1500 rpm Vertical rapid traverse 400 mm/min Power 3.7 kW Automatic feed Magnetic chuck Coolant system Weight 2500 kg

Condition: excellent (used), Year of construction: 2002, Grinding area: 550 x 200 mm Knjdpfx Ahjzi R Sgoijc Max. grinding height: 390 mm Grinding wheel dimensions: max. 225 x 20 mm Bore: 50.8 mm Speed: 2,880 rpm Max. table load: 200 kg Machine weight: 1,800 kg

Year of construction: 2016, condition: ready for operation (used), travel distance X-axis: 500 mm, travel distance Z-axis: 200 mm, spindle speed (max.): 3,500 rpm, table load: 200 kg, number of axes: 2, Surface grinding machine manufactured in 2016. This OKAMOTO ACC 52 SA features a grinding length of 500 mm and a grinding width of 200 mm, with a maximum table load of 200 kg. The hydraulic table feed rate reaches up to 27 m/min, and the spindle speed can go up to 3,500 rpm. If you are looking to get high-quality grinding capabilities, consider the OKAMOTO ACC 52 SA machine we have for sale. Contact us for further details. * Grinding length: 500 mm* Grinding width: 200 mm* Maximum grinding height (table to spindle center): 350–397 mm* Magnetic chuck: 500 x 200 mm* Table load capacity: 200 kg* Hydraulic table feed: up to 27 m/min* Grinding spindle motor power: 1.5 kW* Standard grinding wheel: 225 x 19 x 50.8 mm Optional Accessories available Knjdpfxezwpt Eo Ahijc